CN205147647U - Pipeline welding is with back of body protection device - Google Patents
Pipeline welding is with back of body protection device Download PDFInfo
- Publication number
- CN205147647U CN205147647U CN201521018064.0U CN201521018064U CN205147647U CN 205147647 U CN205147647 U CN 205147647U CN 201521018064 U CN201521018064 U CN 201521018064U CN 205147647 U CN205147647 U CN 205147647U
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- head
- front head
- tube connector
- connecting pipe
- hole
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- Expired - Fee Related
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Abstract
The utility model discloses a pipeline welding is with back of body protection device, including preceding head, connecting pipe and back head, preceding head with the intermediate position department of back head all is equipped with a circular through -hole, preceding head with be equipped with a connecting pipe between the circular through -hole of back head, the connecting pipe with preceding head with the circular through -hole of back head is linked together, just the central line of connecting pipe with preceding head with the central line of back head is on same straight line, the connecting pipe still wraps up outward has the red copper board, preceding head is equipped with three locating pin along the circumference round is even on the surface, every all be fixed with an iron wire on the locating pin, three the iron wire joins pull ring of constitution, preceding head still is equipped with one on the surface and aerifys the hole, has that simple structure is reasonable, with low costs, convenient to use, long service life, the welding is efficient and weld quality is good characteristics.
Description
Technical field
The utility model relates to a kind of back of the body protective device, is a kind of pipeline welding back of the body protective device in particular, belongs to pipeline welding technical field.
Background technology
When carrying out butt welding to adjacent two titanium alloy pipelines, for preventing back bead surface oxidation and obtaining well shaping, ensureing welding quality, when welding, back of the body protective device must be adopted.At present, for some large diameter titanium alloy pipelines, because its caliber can hold people's turnover, so during welding, can allow two workman's coordinating operations, a workman welds outside pipeline, and another workman holds at pipe interior the protective cover connecting argon gas and is mated welding, effectively can ensure welding quality; But when the diameter of titanium alloy pipeline is less; a people cannot be held when passing in and out; just need to adopt homogeneous tube argon-filled protection; the line ups such as the water soluble paper, plank, adhesive tape are used to close; this not only needs the long period just can complete the displacement of inner air tube, wastes a large amount of argon gas, simultaneously; the stability of protection and the more difficult control of quality, the quality of weld seam is also difficult to be guaranteed.
Utility model content
For the problems referred to above, the problem that the utility model quasi-solution is determined be to provide a kind of simple and reasonable, cost is low, easy to use, long service life, welding efficiency are high and the pipeline welding that weldquality is good the back of the body protective device.
For achieving the above object, the utility model is by the following technical solutions: a kind of pipeline welding back of the body protective device, comprise front head, tube connector and rear head, the middle position of described front head and described rear head is equipped with a manhole, a tube connector is provided with between the manhole of described front head and described rear head, described tube connector is connected with the manhole of described front head with described rear head, and the center line of the center line of described tube connector and described front head and described rear head on the same line, described tube connector is also enclosed with copper plate outward, described front head on the surface circumferentially one circle be provided with three alignment pins uniformly, each described alignment pin is all fixed with an iron wire, three described iron wires converge formation draw ring, described front head is also provided with an air-filled pore on the surface.
As preferably, the shape of described front head and described rear head is cone.
The beneficial effects of the utility model: the utility model is simple and reasonable; during use; first affect draw ring by staff by drag hook; the utility model is made slowly to enter into pipeline; and make tube connector centre position aim at weld seam position, now the mouth of pipe is just closed by front head and rear head, then in the air-filled pore of front head, is filled with argon gas; make between front head and rear head, to form a storage argon protection zone, now can carry out the outer surface welding of pipeline.Do not need to adopt homogeneous tube argon-filled protection again, also do not need to use the line ups such as the water soluble paper, plank, adhesive tape to close, not only easy to use, cost is low, and greatly improves welding efficiency, improves weldquality; Moreover tube connector is wrapped with copper plate, anti-breakdown effect can be played, increase service life; The shape of front head and rear head is all set to cone, makes it conveniently enter pipeline.
In sum, the utility model have simple and reasonable, cost is low, easy to use, long service life, welding efficiency are high and the feature that weldquality is good.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1-front head, 2-tube connector, 3-rear head, 4-manhole, 5-alignment pin, 6-iron wire, 7-draw ring, 8-air-filled pore.
Detailed description of the invention
In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with the accompanying drawing in the present embodiment, clear, complete description is carried out to the technical scheme in the utility model embodiment.
As shown in Figure 1, the utility model discloses a kind of pipeline welding back of the body protective device, comprise front head 1, tube connector 2 and rear head 3, the middle position of front head 1 and rear head 3 is equipped with a manhole 4, a tube connector 2 is provided with between the manhole 4 of front head 1 and rear head 3, tube connector 2 is connected with the manhole 4 of rear head 3 with front head 1, and the center line of the center line of tube connector 2 and front head 1 and rear head 3 on the same line, tube connector 2 is outer is also enclosed with copper plate, front head 1 on the surface circumferentially one circle be provided with three alignment pins 5 uniformly, each alignment pin 5 is all fixed with an iron wire 6, three iron wires 6 converge formation draw ring 7, front head 1 is also provided with an air-filled pore 8 on the surface, the shape of front head 1 and rear head 3 is cone.
The utility model is simple and reasonable; during use; first affect draw ring 7 by staff by drag hook; the utility model is made slowly to enter into pipeline; and make tube connector 2 centre position aim at weld seam position, now the mouth of pipe is just closed by front head 1 and rear head 3, then in the air-filled pore 8 of front head 1, is filled with argon gas; make between front head 1 and rear head 3, to form a storage argon protection zone, now can carry out the outer surface welding of pipeline.Do not need to adopt homogeneous tube argon-filled protection again, also do not need to use the line ups such as the water soluble paper, plank, adhesive tape to close, not only easy to use, cost is low, and greatly improves welding efficiency, improves weldquality; Moreover tube connector 2 is wrapped with copper plate, anti-breakdown effect can be played, increase service life; The shape of front head 1 and rear head 3 is all set to cone, makes it conveniently enter pipeline.
Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
Claims (2)
1. a pipeline welding back of the body protective device, it is characterized in that: comprise front head (1), tube connector (2) and rear head (3), the middle position of described front head (1) and described rear head (3) is equipped with a manhole (4), a tube connector (2) is provided with between the manhole (4) of described front head (1) and described rear head (3), described tube connector (2) is connected with the manhole (4) of described rear head (3) with described front head (1), and the center line of the center line of described tube connector (2) and described front head (1) and described rear head (3) on the same line, described tube connector (2) is also enclosed with copper plate outward, described front head (1) on the surface circumferentially one circle be provided with three alignment pins (5) uniformly, each described alignment pin (5) is all fixed with an iron wire (6), three described iron wires (6) converge formation draw ring (7), described front head (1) is also provided with an air-filled pore (8) on the surface.
2. pipeline welding back of the body protective device according to claim 1, is characterized in that: the shape of described front head (1) and described rear head (3) is cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018064.0U CN205147647U (en) | 2015-12-03 | 2015-12-03 | Pipeline welding is with back of body protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018064.0U CN205147647U (en) | 2015-12-03 | 2015-12-03 | Pipeline welding is with back of body protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205147647U true CN205147647U (en) | 2016-04-13 |
Family
ID=55683386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521018064.0U Expired - Fee Related CN205147647U (en) | 2015-12-03 | 2015-12-03 | Pipeline welding is with back of body protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205147647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672934A (en) * | 2018-04-25 | 2018-10-19 | 西安飞机工业（集团）有限责任公司 | A kind of gas shield device of titanium alloy conduit laser welding and guard method |
-
2015
- 2015-12-03 CN CN201521018064.0U patent/CN205147647U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672934A (en) * | 2018-04-25 | 2018-10-19 | 西安飞机工业（集团）有限责任公司 | A kind of gas shield device of titanium alloy conduit laser welding and guard method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20171203 |